As I have written before, as the cost of textbooks continues to rise, more and more college students are choosing not to buy them. Almost half of my class this semester has no textbook. They choose to either borrow a copy from a classmate or the library, or just rely on whatever parts of the book I cover in class (which is probably about 30%).

I would prefer to use a free and open textbook, but I haven't found one for that particular course (Critical Thinking).

Some scary stats:

According to huffingtonpost.com, 7 out of 10 undergraduates surveyed at 13 college campuses said they had not purchased one or more textbooks because the cost was too high when surveyed by the U.S. Public Interest Research Group.

The Government Accountability Office has estimated that textbooks cost a quarter the average tuition for state universities and three-fourths the average tuition at community colleges.

PIRG analysis also found the price of textbooks has risen 22% over the past four years, which is a much faster rate than overall inflation.

Rising prices come as student debt has also soared to record levels. In fact, that debt exceeds the total credit card debt in 2010.